/**
* Returns the mime type of the file.
*
* The mime type is guessed using the functions finfo(), mime_content_type()
* and the system binary "file" (in this order), depending on which of those
* is available on the current operating system.
*
* @returns string The guessed mime type, e.g. "application/pdf"
*/
public function getMimeType()
{
$mimeType = parent::getMimeType();
if (is_null($mimeType)) {
$mimeType = $this->mimeType;
}
return $mimeType;
}
